Motorola A840 - Cell Phone - CDMA2000 1X User manual

Brand: Motorola

Model: A840 - Cell Phone - CDMA2000 1X

Category: Mobile phones

Type: User manual

This manual is also suitable for

A860

Level 2 Service Manual

A840, A860

Digital Wireless Telephone

CDMA 800/1900 MHz; GSM 900/1800 MHz

6809485A78-O June 07, 2004 3

Level 2 Service Manual Contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Product Names . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Regulatory Agency Compliance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Computer Program Copyrights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

About this Service Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Warranty Service Policy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Parts Replacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

General Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Controls, Indicators, and Input/Output (I/O) Connectors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Battery Function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Theory of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

MSM6300 System Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

PM6050 Device Description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

RFR6000 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

RFL6000 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Tools and Test Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Removing the Battery Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Removing and Replacing the RUIM (Removable User Information Memory) . . . . . . . . . . . . . . . . . . 30

Removing and Replacing the Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Removing and Replacing the Antenna . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Removing and Replacing the Keypad Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Removing and Replacing the Speaker Cover . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Removing and Replacing the Keyboard Stiffener . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Removing and Replacing the Flip Assembly and Transceiver Board . . . . . . . . . . . . . . . . . . . . . . . . . 36

Removing and Replacing the Flip Display Lens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Removing and Replacing the Flip Assembly Sleeve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Removing and Replacing the Flip Knuckle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Removing the Display Bezel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Removing the Display Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Removing and Replacing the Keypad . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Removing the Motor/Vibrator Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Phone Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Personality Transfer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Identification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

Programming: Software Upgrade and Flexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

Exploded View Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Exploded View Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Contents

A840

6809485A78-O

4 June 07, 2004 6809485A78-O

Contents A840

6809485A78-O June 09, 2004 5

Level 2 Service Manual Introduction

Introduction

Motorola

Inc. maintains a worldwide organization that is dedicated to provide

responsive, full-service customer support. Motorola products are serviced by an

international network of company-operated product-care centers as well as

authorized independent service firms.

Available on a contract basis, Motorola Inc. offers comprehensive maintenance and

installation programs that enable customers to meet requirements for reliable,

continuous communications.

To learn more about the wide range of Motorola service programs, contact your local

Motorola products representative or the nearest Customer Service Manager.

Product Identification

Motorola products are identified by the model number on the housing. Use the entire

model number when inquiring about the product. Numbers are also assigned to

chassis and kits. Use these numbers when requesting information or ordering

replacement parts.

Product Names

Product names are listed on the front cover. Product names are subject to change

without notice. Some product names, as well as some frequency bands, are available

only in certain markets.

Regulatory Agency Compliance

This device complies with Part 15 of the FCC Rules. Operation is subject to the

following conditions:

• This device may not cause any harmful interference

• This device must accept interference received, including interference that may

cause undesired operation

This class B device also complies with all requirements of the Canadian

Interference-Causing Equipment Regulations (ICES-003).

Cet appareil numérique de la classe B respecte toutes les exigences du Règlement

sur le matériel brouilleur du Canada.

A840

6809485A78-O

6 June 09, 2004 6809485A78-O

Introduction A840

Computer Program Copyrights

The Motorola products described in this manual may include Motorola computer

programs stored in semiconductor memories or other media that are copyrighted

countries preserve for Motorola, Inc. certain exclusive rights to the copyrighted

computer programs, including the exclusive right to copy, reproduce, modify,

decompile, disassemble, and reverse-engineer the Motorola computer programs in

any manner or form without Motorola's prior written consent. Furthermore, the

purchase of Motorola products shall not be deemed to grant either directly or by

implication, estoppel, or otherwise, any license or rights under the copyrights,

patents, or patent applications of Motorola, except for a nonexclusive license to use

the Motorola product and the Motorola computer programs with the Motorola

product.

About this Service Manual

Using this service manual and the suggestions contained in it assures proper

installation, operation, and maintenance. Refer questions about this manual to the

nearest Customer Service Manager.

Audience

This service manual aids service personnel in testing and repairing A840

telephones. Service personnel should be familiar with electronic assembly, testing,

and troubleshooting methods, and with the operation and use of associated test

equipment.

Use of this manual assures proper installation, operation, and maintenance of

Motorola products and equipment. It contains all service information required for

the equipment described and is current as of the printing date.

Scope

This manual provides basic information relating to A840 telephones, and also to

provides procedures and processes for repairing the units at Level 1 and 2 service

centers including:

•Unit swap out

• Repairing of mechanical faults

• Basic modular troubleshooting

• Testing and verification of unit functionality

• Initiate warranty claims and send faulty modules to Level 3 or 4 repair

centers

6809485A78-O June 09, 2004 7

Level 2 Service Manual Introduction

Conventions

The following special characters and typefaces are used in this manual to emphasize

certain types of information.

Warranty Service Policy

The product is sold with the standard 12-month warranty terms and conditions.

Accidental damage, misuse, and extended warranties offered by retailers are not

supported under warranty. Non warranty repairs are available at agreed fixed

repair prices.

Out-of-Box Failure Policy

The standard out of box failure criteria applies. Customer units that fail very early

on after the date of sale, are to be returned to Manufacturing for root cause analysis,

to guard against epidemic criteria. Manufacturing will bear the costs of early life

failure.

Product Support

Customer’s original units will be repaired but not refurbished as standard.

Appointed Motorola Service Hubs will perform warranty and non-warranty field

service for level 2 (assemblies) and level 3 (limited PCB component). The Motorola

High Technology Centers will perform level 4 (full component) repairs.

Customer Support

Customer support is available through dedicated Call Centers and in-country help

desks. Product Service training is available through the local Motorola Support

Center.

➧

Note: Emphasizes additional information pertinent to the subject

matter.

Caution: Emphasizes information about actions that may result in

equipment damage.

Warning: Emphasizes information about actions that may result in

personal injury.

Keys to be pressed are represented graphically. For example, instead of “Press

the Menu Key”, you will see “Press H”.

Information from a screen is shown in text as similar as possible to what

displays on the screen. For example, ALERTS or ALERTS or ALERTS.

Information that you need to type is printed in boldface type.

8 June 09, 2004 6809485A78-O

Introduction A840

Parts Replacement

When ordering replacement parts or equipment, include the Motorola part number

and description used in the service manual or supplement.

When the Motorola part number of a component is not known, use the product model

number or other related major assembly along with a description of the related

major assembly and of the component in question.

In the U.S.A., to contact Motorola, Inc. on your TTY, call: 800-793-7834

Accessories and Aftermarket Division (AAD)

Order replacement parts, test equipment, and manuals from AAD.

In EMEA call +49 461 803 1638.

In Asia call +65 648 62995.

U.S.A. Outside U.S.A.

Phone: 800-422-4210 Phone: 847-538-8023

FAX: 800-622-6210 FAX: 847-576-3023

6809485A78-O June 09, 2004 9

Level 2 Service Manual Specifications

Specifications

General Function Specification

Frequency Range 1900 MHz PCS 1931.250 -1988.750 MHz Rx

1851.250 -1908.750 MHz Tx

Frequency Range 800 MHz CDMA 869.04 - 893.97 Rx

824.04 - 848.97 Tx

Frequency Range GSM 900

880-915 MHz Tx (with EGSM)

925-960 MHZ Rx

Frequency Range DCS 1800

1710-1785 MHz Tx

1805-1880 MHz Rx

Channel Spacing 50 kHz PCS

30 kHz CDMA/AMPS

Channels (CDMA) 1200 PCS CDMA

832 CDMA

Channels (GSM) 174 EGSM, 374 PCS, carriers with 8 channels

per carrier

Modulation 1M25D1W (1.25 MHz bandwidth) CDMA

3G1XRTT (1.25 MHz bandwidth) CDMA-1X

F3 +12 kHz for 100% at 1 kHz AMPS

Transmitter Phase Accuracy 5 Degrees RMS, 20 Degrees peak

Duplex Spacing 80 MHz PCS

45 MHz AMPS

Frequency Stability ± 300 Hz (CDMA)

2.5 ppm (AMPS)

Power Supply 3.6V Li Ion 750 mAh battery

Average Transmit Current 310 mA at +13 dBm)

Average Stand-by Current 3.40 mA

Dimensions

(with 750 mAh Li ion battery)

94mmX49mmX23mm

3.7 in. x 1.9 in. x 0.9 in.

Size (Volume) 88 cc (5.37 in.

) without antenna

Weight <100g (3.84 oz) with battery

Temperature Range -30° C to +60° C (-22° F to +140° F)

Humidity 80% Relative Humidity at 50° C (122° F)

Battery Life, 750 mAh Li Ion Battery Up to 180 minutes digital talk time (IS 95 A/B)

Up to 90 minutes talk time (Analog)

Up to 250 hours (IS 95 A/B) standby time

Up to 350 hours (IS 2000) standby time

Up to 15 hours standby time (Analog)

All talk and standby times are approximate and

depend on network configuration, signal strength,

and features selected.

Transmitter Function Specification

RF Power Output

0.20 watts -23 dBm into 50 ohms (CDMA

nominal)

.6 watts -27.0 dBm into 50 ohms (AMPS

nominal)

Input/Output Impedance 50 ohms (nominal)

Transmit Audio Response 6 dBm/octave pre-emphasis

Modulation 1M25DIW (1.25 MHz bandwidth) CDMA

CDMA Transmit Waveform Quality

(Rho)

0.94

10 June 09, 2004 6809485A78-O

Specifications A840

Receiver Function Specification

Receive Sensitivity

-116 dBm (AMPS, SINAD, C-MSG weighted)

Sinad 12dB or greater

-104 dBm (CDMA, 0.5% Static FER) 0.5% or less

Audio Distortion

Less than 5% at 1004 Hz, +/- 8 kHz peak

frequency deviation (transmit and receive)

Adjacent and Alternate Channel

Desensitization

3% BER max at 107 dBm signal; -94 dBm/30 kHz,

-65 dBm/60 kHz

IM (AMPS) Greater than 65 dB

6809485A78-O June 09, 2004 11

Level 2 Service Manual Product Overview

Product Overview

Motorola A840 mobile telephones feature Code Division Multiple Access (CDMA)

technology. The mobile telephone uses a simplified icon and Graphical user

interface (GUI) for easier operation, allow Short Message Service (SMS) text

messaging, and include clock, alarm, datebook, calculator, and caller profiling

personal management tools. The A840 also has a built in camera. The phone

provides 32 Embedded ring tones including VibraCall vibrating alert and 32

Downloadable/Customizable iMelody ring tones. The A840 is a dual band, quad

mode phone that allow user roaming with a single handset between the 800/1900

MHz CDMA bands and the 900/1800 MHz GSM bands.

Manual switching between CDMA and GSM and GSM and CDMA is supported by

a soft button and icons to indicate mode of operation.

The A840 telephone consists of a main housing assembly and a flip assembly. The

phone has the main circuit board, battery, headset jack, and accessory connector in

the main housing assembly. The display and camera are located in the hinged flip

assembly.

The flip assembly contains the entire hinge mechanism. It is attached to the main

housing by four screws. The main display is on the inside of the flip assembly and

a LED display on the outside of the flip assembly. The main display is a 176 x 220

pixels, 262K color TFT LCD. The external display is a 96x64 pixel, 4K-color CSTN.

The camera is a 350K pixel, VGA CMOS Sensor Camera.

The main housing assembly includes a battery cover, chassis, main circuit board,

keypad and plastic front housing.

The main circuit board contains the Receiver, Transmitter, Synthesizer and Control

Logic Circuitry which together comprise the dual band tri-mode phone electronics.

The telephones are made of polycarbonate plastic with a metal enclosure. The

display and speaker, as well as the 18-key keypad, transceiver printed-circuit board

(PCB), microphone, charger and headphone connectors, and power button are

contained within the flip form-factor housing. The 750 mAh Lithium Ion (Li Ion)

battery provides up to 178 minutes of talk time in CDMA mode with up to 264 hours

of standby time

Features

A840 telephones use advanced, self-contained, sealed, custom integrated circuits to

perform the complex functions required for CDMA communication. Aside from the

space and weight advantage, microcircuits enhance basic reliability, simplify

maintenance, and provide a wide variety of operational functions.

Features available in this family of telephones include:

• 1.3 M-pixel Camera with Integrated Flash

• Multi-Media Messaging (MMS)

• Video clips capture & playback

• Self Portrait Viewfinder External Display

• 64 Polyphonic, 18mm Office Quality Speaker Phone, Stereo Headset Support

• Integrated MP3 Player, MP3 and MIDI Ringers

•

1. All talk and standby times are approximate and depend on network configuration, signal strength, and features selected. Standby

times are quoted as a range from DRX=2 to DRX=9. Talk times are quoted as a range from DTX off to DTX on.

12 June 09, 2004 6809485A78-O

Product Overview A840

• Picture Caller ID on External & Internal Display

• Digital Camera Features: Photo Album, Slide Show Viewer, 4X Digital Zoom,

Auto timer, Shutter Tones, Adjustable Resolution, Adjustable Lighting Condi-

tions, Exposure Settings, 4 Image Styles.

• Digital Camcorder Features: Adjustable video length for up to 3 minutes,

Recording sound on/off option, Flash light, Adjustable video quality, Adjustable

lighting conditions and exposure settings,

• SD compatible T-Flash Memory Expansion Slot

• Connectivity via Bluetooth™ and CE bus

• Speaker Independent Digit and Name Dialing

• 5-way Navigation, Simultaneous button press for BREW Gaming

• PIM functionality, PC Sync with optional Mobile Phone Tools Software, Predic-

tive Text (iTAP), 500 Multi-fielded Phonebook Entries

• High speed data support (CDMA1X and GPRS).

•TTY compliant

• Hearing Aid Telephone Interconnection System (HATIS) support

• AFLT/aGPS location services

Simplified Text Entry

iTAP™ predictive text entry. Press a key to generate a character and a dynamic

dictionary uses this to build and display a set of word or name options. The iTAP™

feature may not be available in all languages.

2. Network, subscription or service provider dependent feature. Not available in all areas.

6809485A78-O June 09, 2004 13

Level 2 Service Manual General Operation

General Operation

Controls, Indicators, and Input/Output (I/O) Connectors

The A840 telephones’ controls are on the front and side of the device, and on the

keyboard as shown in Figure 1. Other hardware features are shown in Figure 2.

032407o

Figure 1. Controls and Indicators Locations

CLR Key

Volume Keys

Adjust earpiece

& ringer volume.

Smart Key

Select menu

items, make &

end calls, set

ring styles.

Voice

Recognition Key

Press once to

activate speaker-

independent

voice recognition.

Press & hold to

record voice

records, contacts,

& shortcut names.

Accessory Port

Send Key

Make &

answer calls,

view recently

dialed calls list.

Left Soft Key

Perform

functions

identified by left

display prompt.

Right Soft Key

Perform

functions

identified by right

display prompt.

5-Way

Navigation Key

Scroll through menus

& lists, set feature

values. From home

screen, press K key

in center to access

U-Max. In menus,

press K to select

highlighted item.

Camera Key

Power/End Key

Turn phone

on/off, end

phone calls, exit

menus.

14 June 09, 2004 6809485A78-O

General Operation A840

Menu Navigation

A840 telephones have a simple icon based GUI. The phone also features a

user-definable Quick Access menu accessed by holding down the Menu key.

A 5-way navigation key allows you to move easily through menus.

Color Display

The A840 phone features a 176 x 220 pixel, 262K color display. The display provides

constant graphical representations of battery capacity and signal strength, as well

as the real-time clock.

Display animation makes the phone’s icon menu move smoothly as the user scrolls

up and down.

040183o

Figure 2. Hardware Features Locations

➧

Whether a phone displays all indicators depends on the programming and services

to which the user subscribes.

Headset Jack

Camera Lens

Take photos to send

to others & use

on your phone.

External

Display

Integrated Short-

Range Flash

Projected when

taking flash photos.

Camera Key

6809485A78-O June 09, 2004 15

Level 2 Service Manual General Operation

Figure 2 shows some common icons displayed on the LCD.

Alert Settings

In addition to preset ring tones, A840 telephones allow the user to download

additional ring tones. (Availability is carrier and Network dependant).

Motorola A840 phones incorporate the VibraCall

discreet vibrating alert that

avoids disturbing others when a ringing phone is unacceptable.

Alerts can be set to ring only, vibrate only, vibrate then ring, or no ring or vibrate.

Additionally, the profiling feature allows users to identify incoming calls by a

specific ringer tone.

Battery Function

Battery Charge Indicator

The telephone displays a battery charge indicator icon in the idle screen to indicate

the battery charge level. The gauge shows four levels: 100%, 66%, 33%, and Low

Battery.

032237o

Figure 3. A840 Display Icon Indicators

032418o

(Oà\ rÑuyÉ

Right Soft Key

Label

Date

Left Soft Key

Label

Clock

RECENT PH.BOOK

6:35am

Service Provider

10/15/04

032419o

(Oà

rÑuyÉ

1. Bluetooth

Connection

Signal

Strength

Coverage

Message

Battery

Level

Ring Alert

Location

Roam

RECENT PH.BOOK

6:35am

Service Provider

10/15/04

AGPS

Service

16 June 09, 2004 6809485A78-O

General Operation A840

Battery Removal

Removing the battery causes the device to shut down immediately and loose any

pending work (partially entered phone book entries or outgoing messages, for

example).

Operation

For detailed operating instructions, refer to the appropriate User Guide listed in

the Related Publications section toward the end of this manual.

All batteries can cause property damage and/or bodily injury such as burns if a

conductive material such as jewelry, keys, or beaded chains touch exposed terminals.

The conductive material may complete an electrical circuit (short circuit) and

become quite hot. Exercise care in handling any charged battery, particularly when

placing it inside a pocket, purse, or other container with metal objects.

If the battery is removed while receiving a message, the message is lost.

➧

To ensure proper memory retention, turn the phone OFF before removing the

battery. Immediately replace the old battery with a fresh battery.

6809485A78-O June 07, 2004 17

Level 2 Service Manual Theory of Operation

Theory of Operation

MSM6300 System Overview

QCT’s MSM6300 solution, part of QCT’s MSM6xxx Mobile Station Modem (MSM™)

family of chipsets and system. The 6300-series chipset supports cellular-cdma2000,

PCS-cdma2000, gpsone position location, EGSM-900, and DCS-1800 handset oper-

ation with direct conversions from RF to baseband using RadioOne Zero-IF archi-

tecture. It is optimized to support voice and multimedia data applications while

enabling CDMA2000 1X and GSM GPRS network benefits. The MSM6300 solution

provides a seamless migration path from 2G to 3G services and applications, and

increases voice capacity for CDMA2000 1X networks. It will also enable CDMA

developers to quickly develop 3G CDMA2000 1X handsets that exceed the specifi-

cations of mobile stations for worldwide cdmaOne™ and 3G 1xMC systems, includ-

ing those based on IS-95A/B,IS-2000 and 3GPP 51.010 standards.

The MSM6300 chipset solution consists of the MSM6300 Baseband processor, direct

conversion RFL6000TM and RFR6000TM receive devices, RTR6300TM RF trans-

ceiver IC, PM6050TM power management device and a compatible power amplifier

device. These devices perform all of the signal processing and power management

in the subscriber unit.

The MSM6300 chipset and system software features radioOne direct conversion

architecture and incorporates a low-power, high-performance RISC microprocessor

core featuring the ARM926EJ-S™ CPU and Jazelle™ accelerator circuit for ad-

vanced Java applications from ARM® Limited. The MSM6100 solution integrates

two, low-power, high-performance QDSP4000™ digital signal processor (DSP)

cores. Use of the ARM926EJ-S™ CPU and QDSP4000 DSP eliminates the need for

the multimedia companion processor(s) normally required for video-based applica-

tions, playing MP3 music files and MIDI synthesizer/CMX functions.

The MSM6300 chipset and system software incorporates the advanced feature set

of QCT’s Wireless Internet Launchpad™ suite of technologies, integrated MPEG-4

video decoding/encoding, MP3 audio decoding, a 2D/3D graphics accelerator for

advanced gaming applications, a Compact Media Extension (CMX™)/MIDI synthe-

sizer, a digital camera interface, an enhanced LCD interface, and JPEG encoding/

decoding.

The MSM6300 solution supports QUALCOMM’s gpsOne™ position location tech-

nology, including standalone mode in which the handset can act as a GPS receiver.

The gpsOne solution, featuring SnapTrack™ technology, offers robust data avail-

ability under the most challenging conditions, whether in concrete-and-steel high-

rises, convention centers, shopping malls, or urban canyons. Using a hybrid

approach that utilizes signals from both the GPS satellite constellation and from

CDMA cell sites, the gpsOne solution enhances location services availability,

accelerates the location determination process and provides better accuracy for

callers, whether during emergency situations or while using GPS-enabled commer-

cial applications. The MSM6300 solution also supports the Wireless Internet

Launchpad’s VectorOne™ compass capability.

The MSM6300 chipset reduces radio bill-of-materials (BOM) by the introduction of

RadioOne RF devices System BOM is further reduced by supporting interfaces to

next generation memories architectures such as; NAND FLASH, Pseudo SRAM

(PSRAM), Page and Burst mode NOR FLASH and low power SDRAM (LP-SDRAM).

QCT provides a complete software suite, Dual-Mode Subscriber (DMSS) software,

for building handsets around the MSM6300 chipset. DMSS software is designed

A840

6809485A78-O

18 June 07, 2004

Theory of Operation A840

to run on a Subscriber Unit Reference (SURF) phone platform, an optional devel-

opment platform optimized to assist in evaluating, testing and debugging DMSS

software.

The MSM6300 device is offered in a 341-ball, 0.5mm pitch Chip Scale Package (CSP)

production package. Additionally, the MSM6300 solution supports QUALCOMM’s

Binary Run-time Environment for Wireless™ (BREW™) applications development

platform.

The MSM6300 device interfaces directly with QCT’s new radioOne RF ASICs.

radioOne is a revolutionary technology for CDMA transceivers that uses Zero

Intermediate Frequency (ZIF), or direct conversion, architecture for the wireless

handset market. This direct conversion eliminates the need for large IF Surface

Acoustic Wave (SAW) filters and additional IF circuitry, which significantly reduces

the handset BOM parts count, facilitating multiband and multimode handsets that

can be produced in smaller form factors. radioOne technology also incorporates the

frequency synthesis and passive elements used in converting Baseband signals to

and from RF. A single external dualband local oscillator is used for the CDMA and

GSM receiver, which will provide the capabilities needed to operate on systems

around the world and will simplify the procurement of parts and the cost of

designing CDMA/GSM handsets.

Figure 4. Motorola MSM6300 System Block Diagram

June 07, 2004 19

Level 2 Service Manual Theory of Operation

PM6050 Device Description

The PM6050 device (Figure 2) integrates all wireless handset power management,

general housekeeping, and user interface support functions into a single mixed

signal IC. Its versatile design is suitable for CDMA and non-CDMA handsets, as

well as other wireless products such as PC cards, modems, PDAs, etc. The power

management portion accepts power from all the most common sources – battery,

external charger, adapter, coin cell back-up – and generates all the regulated

voltages needed to power the appropriate handset electronics. It monitors and

controls the power sources, detecting which sources are applied, verifying that they

are within acceptable operational limits, and coordinates battery and coin cell

recharging while maintaining the handset electronics supply voltages. Eight

programmable output voltages are generated using low dropout voltage regulators,

all derived from a common trimmed voltage reference.

The device’s general housekeeping functions include a 10-bit ADC whose input is

selected by a 10-position analog multiplexer having five internal and five external

connections. The internal connections are used to monitor voltage sources, charging

status, and current flow. The five external connections are available to monitor

system parameters such as temperature, RF output power, and battery ID. Various

oscillator, clock, and counter circuits are provided to initialize and maintain valid

pulse waveforms and measure time intervals for higher-level handset functions. A

dedicated controller manages the TCXO warm-up and signal buffering, and key

parameters (under-voltage lockout and crystal oscillator signal presence) are mon-

itored to protect against detrimental conditions. Handset-level user interfaces are

also supported. The IC includes four backlight or LED drivers with brightness

(current) control that could be used for the keypad, the LCD, and two user definable

general-purpose drivers. Independent vibrator and ringer/buzzer drivers alert

handset users of incoming calls; these independent drivers can be used simulta-

neously for dual-function applications. A speaker driver with volume control

supports speakerphone and melody-ringer applications. The speaker and ringer/

buzzer drivers share common PM6050 circuitry, so only one can be used at a time.

An MSM device controls and statuses the PM6050 IC using a three-line Serial Bus

Interface (SBI) supplemented by an Interrupt Manager for time-critical informa-

tion. Another dedicated IC interface circuit monitors multiple trigger events and

controls the power-on sequence. The PM6050 is a mixed signal BiCMOS device and

is available in the 56-pad Bump Chip Carrier (56 BCCP) package that includes a

large center slug for electrical ground and thermal relief. Since the PM6050 IC

includes so many diverse functions, its operation is more easily understood by

considering major functional blocks individually. Therefore, the PM6050 document

set is organized according to the following device functionality:

• Input Power Management

• Output Voltage Regulation

• General Housekeeping

• User Interfaces

•IC Interfaces

Most of the information contained in this Device Specification is organized accord-

ingly – including the circuit groupings within the block diagram (Figure 1-1) and

detailed electrical specifications (Section 4). To begin, introductory descriptions of

all the PM6050 device’s circuits are provided in the following subsections.

20 June 07, 2004

Theory of Operation A840

Figure 5. PM6050 Block Diagram

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